[Skimmertalk] [RBN-OPS] A solution for a Red Pitaya-based FT8 skimmer for RBN

[Björn Ekelund]

Hi Saki,

Since the instructions tell you to start with a clean SD card,
they are intended to create a dedicated FT8 skimmer.

Before publishing the installation procedure here, it was iterated to
prevent the issues encountered by other users and, above all, require
zero expertise from the user.

As you surely know, knowledge level and preferences vary wildly.
Very few have your level of expertise.

I will update the wording based on your feedback.

Thank you and 73,

Björn

Den tis 19 mars 2019 kl 16:33 skrev <dd5xx at web.de>:

> Hello Björn,
>
> thanks for contributing your modified FT-8 application. Although I am not
> interested in the FT-8 part I downloaded and tested it because I was
> interested in the "radioday" app which I find useful. Thank you.
>
> I want to suggest two things in your installation.sh script:
>
> - you are copying and overwriting "start.sh" to "/media/mmcblk0p1" which
> in result will put your FT8 application to autostart whenever the system
> boots. I was puzzled when I rebooted my system because my favorite
> application "sdr_receiver_hpsdr" did not run. In process list I saw then
> your application running and it was clear what happened. I find it's better
> to let the user decide what kind of application to autostart on system boot.
>
> - you are copying the temperature script "temp.sh" into the root folder
> and keep it there. Again, I find it more convenient and user-friendly to
> let the user decide if and what files an application puts into the
> home/root folder.
>
> Just my 2 cents. However, thanks again. Wish you a nice day
>
> 73
> Saki, DD5XX
>
> *Gesendet:* Donnerstag, 14. März 2019 um 11:58 Uhr
> *Von:* "Björn Ekelund" <bjorn at ekelund.nu>
> *An:* Skimmertalk <skimmertalk at contesting.com>, rbn-ops at groups.io
> *Betreff:* [Skimmertalk] A solution for a Red Pitaya-based FT8 skimmer
> for RBN
> Many are today running Red Pitaya-based CW and RTTY skimmers using Pavel
> Demin's
> excellent radio software suite. (
> http://pavel-demin.github.io/red-pitaya-notes)
>
> Demin's suite also contains a high performance, eight-band FT8
> receiver/decoder but
> it lacks some key features to make a good FT8 skimmer for RBN.
>
> To address this I have developed a solution. It is based on two small apps
> written in C; radioday and upload-to-rbn.
> The radioday app calculates the day/night/twilight status for an arbitrary
> location, to mimic RBN Aggregator's ini-file cycling for CW skimmer Server.
> The upload-to-rbn app transfers decoded call signs, SNR, and grid (when
> available) to RBN Aggregator using the WSJT-X protocol over UDP broadcast.
>
> To make installation easy I have developed a kit with the necessary files
> and
> scripts for configuring and installing them. It has been successfully
> tested
> on both Red Pitaya 125-14 and 122-16.
>
> Step-by-step installation instructions can be found at
> https://sm7iun.ekelund.nu/red-pitaya/ft8-skimmer
>
> Any feedback on performance or functionality is welcome.
>
> 73,
>
> Björn SM7IUN
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